I'm going to have my hair cut and coloured tomorrow at a new (to me) hairdressers, and I'm not sure whether I should leave a tip or not. Backstory is that I've lived in Australia for nine years (where you're not expected to tip anyone but waiting staff in restaurants), and before that I dyed my own hair at home. I last went to a hairdresser in the UK about 15 years ago, and I did tip at that point, but I don't know whether it is expected now, and if so what would be an appropriate amount?
If it makes a difference, I'm going in for a bit of a radical restyle, having not had it done for a few months.